Agronomic and biochemical evaluation of cassava clones with roots that have pink pulp

Abstract

Sweet cassava breeding programs are focused on the development of bio fortified cultivars that combine significant amounts of carotenoids in their reserve roots with desirable agronomic. The objective of this research was to evaluate agronomic and biochemical traits in sweet cassava clones with roots that have pink pulp. The nine genotypes were evaluated in two seasons in a randomized block design with three replications. Among the evaluated clones, the following stood out: i) for the height of the first branch (390/08, 345/08 and the control IAC 576-70); ii) for plant height (390/08, 345/08 e 378/08); iii) for shoot weight without original steam cutting (390/08, 406/08, 378/08 e 341/08); iv) for the percentage of starch in roots (378/08, 413/08, 390/08 and the control IAC 576-70); and v) for the root yield (the control IAC 576-70 and 341/08, 390/08, 406/08 e 387/08). In the 2011/2012 season, all clones cooked within 30 minutes, indicating that they all have good culinary qualities. Regarding the total carotenoid content in the roots, the clones that stood out were 406/08 and 341/08. All clones evaluated had HCN content below 100 mg kg-1. Clones 341/08 and 406/08 have agronomic and biochemical potential for direct cultivation by producers in the Cerrado region of Central Brazil and / or for use as stock in sweet cassava breeding programs.

Culinary quality and sensory profile of cassava varieties harvested at different ages

“…The cyanogenic compound values are below the maximum limit of 50 µg HCN g -1 defined by the Food and Agriculture Organization of the United Nations/World Health Organization [FAO/WHO] (2012) for sweet cassava. In the study conducted by Fuhrmann et al (2020), much higher values were reported for different cassava clones, ranging between 25 and 85 µg HCN g -1 .…”

Caracterização morfológica de clones elite biofortificados de mandioca de mesa com polpa rosada / Morphological characterization of elite biofortified sweet cassava clones with pinkish pulp

“…A mandioca sempre foi cultivada em razão de suas raízes de reservas ricas em amido (Lima et al, 2020), porém pobres em proteínas e vitaminas. Entretanto, nos últimos anos, os programas de melhoramento genético de mandioca de mesa estão focando no desenvolvimento de cultivares biofortificadas que incluem, como característica desejada, a presença de carotenóides como βcaroteno nas raízes de coloração amarela (Carvalho et al, 2012;Vieira et al, 2018;Fuhrmann et al, 2019) e licopeno nas raízes de coloração rosada (Carvalho et al, 2011;Fuhrmann et al, 2020). As principais fontes de carotenóides são cenouras e aboboras (α e β-caroteno), tomates e derivados, como extrato, polpa e molhos (licopeno) e espinafre (luteína).…”